11845861229 has 2 divisors, whose sum is σ = 11845861230. Its totient is φ = 11845861228.

The previous prime is 11845861219. The next prime is 11845861243. The reversal of 11845861229 is 92216854811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9945075625 + 1900785604 = 99725^2 + 43598^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11845861229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11845861219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5922930614 + 5922930615.

It is an arithmetic number, because the mean of its divisors is an integer number (5922930615).

Almost surely, 2^11845861229 is an apocalyptic number.

It is an amenable number.

11845861229 is a deficient number, since it is larger than the sum of its proper divisors (1).

11845861229 is an equidigital number, since it uses as much as digits as its factorization.

11845861229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 276480, while the sum is 47.

The spelling of 11845861229 in words is "eleven billion, eight hundred forty-five million, eight hundred sixty-one thousand, two hundred twenty-nine".